摘要:
In an introduction assembly for an articulated probe, a feeding mechanism has actuators for controlling the articulated probe. The introduction device is fixed in a positional relationship to the feeding mechanism. The introduction device includes a support member configured to support an articulated probe. A proximal end of the support member has an entrance configured to guide the articulated probe into contact with the support member. A distal end of the support member has an exit configured to guide the articulated probe from the support member into a region of interest.
摘要:
A tubular tissue graft device is provided comprising a tubular member and a restrictive fiber matrix of a bioerodible polymer about a circumference of the tubular tissue. The matrix may be electrospun onto the tubular tissue. In one embodiment, the tubular tissue is from a vein, such as a saphenous vein, useful as an arterial graft, for example and without limitation, in a coronary artery bypass procedure. 5 Also provided is method of preparing a tubular graft comprising depositing a fiber matrix of a bioerodible polymer about a perimeter of a tubular tissue to produce a tubular tissue graft device. A cardiac bypass method comprising bypassing a coronary artery with a tubular tissue graft device comprising a vein and a restrictive fiber matrix of a bioerodible polymer about a circumference of the vein also is provided.
摘要:
Methods and devices for treating a vessel for use in a medical procedure are disclosed. A vein or other vessel can be modified in situ, prior to harvesting. Subsequently, at least a portion of the vessel is removed, and subsequently implanted to treat a patient, typically in a bypass procedure in which the vessel portion fluidly connects a source of oxygenated blood to an occluded artery.
摘要:
A cartridge device is provided for applying a fiber matrix to a tubular member such as a saphenous vein graft. The cartridge includes a housing, a tubular member holder, a rotational drive, and a polymer delivery assembly. The housing defines a chamber which surrounds the tubular member holder. The rotational drive rotates the tubular member during the fiber application process.
摘要:
An articulating probe, comprises a first mechanism including a first link comprising a first longitudinal axis, a first articulation surface and a first motion-limiting element; and a second link comprising a second longitudinal axis, a second articulation surface and a second motion-limiting element. An articulation joint comprises the first articulation surface and the second articulation surface and constructed and arranged to allow two degree-of-freedom articulation of the second link relative to the first link. A motion resisting assembly comprises the first motion limiting element and the second motion limiting element, wherein the motion resisting assembly is constructed and arranged to resist rotation of the second link about the second longitudinal axis relative to the first longitudinal axis of the first link.
摘要:
A system for obtaining a pH measurement includes a disposable probe and a reader. The disposable probe comprises multiple indicating electrodes and at least one reference electrode. The reader is configured to operably engage with the disposable probe and provide pH information of a sample.
摘要:
A plurality of individual tools is provided where each tool is uniquely configured to perform a step or a portion of a step in a novel procedure associated with the implantation of a stabilizing device (e.g., an interspinous spacer) for stabilizing at least one spinal motion segment. The tools are usable individually, or more preferably as a tooling system in which the tools are collectively employed to implant an interspinous spacer, generally in a minimally invasive manner. For example, each of the tools is arranged with coordinated markings and/or other features to ensure consistent depths of insertion, proper orientation of the tools with respect to each other or an anatomical feature of the patient, and precise delivery of the spacer to maintain safe positioning throughout the implantation procedure.
摘要:
A method for treatment of COPD, hypertension, and left ventricular hypertrophy, and chronic hypoxia including creation of an artificial arterio-venous fistula and installation of a flow mediating device proximate the fistula. The flow mediating device is operated to limit flow as medically indicated to provide the optimum amount of bypass flow.
摘要:
Systems, methods, apparatus and devices for performing improved gynecologic and urologic procedures are disclosed. The system is configured to permit simultaneous tissue cutting and removal from a target site. The various embodiments enable procedures to be performed outside the hospital setting, such as in a doctor's office or clinic.
摘要:
Devices, systems and methods for dynamically stabilizing the spine are provided. The devices include an expandable spacer having an undeployed configuration and a deployed configuration, wherein the spacer has axial and radial dimensions for positioning between the spinous processes of adjacent vertebrae. The systems include one or more spacers and a mechanical actuation means for delivering and deploying the spacer. The methods involve the implantation of one or more spacers within the interspinous space.